已知数列{an}满足a1=1,a(n+1)=2an+1(n∈N)(1)求数列{an}的通项公式（2）若数列{bn}满足4^(b1-1).4^(b2-1）已知数列{an}满足a1=1,a(n+1)=2an+1(n∈N*)(1)求数列{an}的通项公式（2）若数列{bn}满足4^(b1-1).4^(b2-1).4^(b3-

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